Helmet–mounted miniature information display system (HEMIND) - JM Otón; X Quintana; N Bennis; A Lara; PL Castillo; E Cortés; V Rodríguez; JMS Pena; V Urruchi; R Vergaz; H De Smet; P Colson; et al. (15th Conference On Liquid Crystals Clc?03, 2003)